MCP server

Multiplayer Agent Official

com.multiplayeragent/multiplayer-agent

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Make any browser game multiplayer and host it at a share link. No account needed to start.

Website Source

At a glance

Type

MCP server

Publisher

multiplayeragent.com (verified by the MCP Registry)

Status

Working at last check

Tools

10

Token cost

About 2,411 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http multiplayer-agent https://api.multiplayeragent.com/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.multiplayer-agent]
url = "https://api.multiplayeragent.com/mcp"

Gemini CLI

{"mcpServers":{"multiplayer-agent":{"httpUrl":"https://api.multiplayeragent.com/mcp"}}}

Cursor

{"mcpServers":{"multiplayer-agent":{"url":"https://api.multiplayeragent.com/mcp"}}}

VS Code

{"servers":{"multiplayer-agent":{"type":"http","url":"https://api.multiplayeragent.com/mcp"}}}

Antigravity

agy mcp add multiplayer-agent https://api.multiplayeragent.com/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"multiplayer-agent","server_url":"https://api.multiplayeragent.com/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"multiplayer-agent","server_url":"https://api.multiplayeragent.com/mcp"}

Tools

• claim_studio ~164 tokens
  This connection has no account: it builds into an unclaimed studio. Returns the claim link to give the user (a free sign-up or log-in that moves the studio's games into their own account), when the studio expires, and whether it has been claimed already. connect_account is the better way to keep the
• connect_account ~206 tokens
  Connect this keyless session to the user's own account, the way `gh auth login` works. Ask for their email first and pass it (it prefills the page). Returns a one-time url and a code: open the url in their browser yourself and tell them the code. They sign up or log in ON THE PAGE (never ask for a p
• create_game ~121 tokens
  Mint a new game (publishable key) under your studio (secret key). Returns its publishableKey + wsEndpoint. Point a client at the new key, or scope this MCP to it by passing the x-mp-game header.
• define_room_type ~510 tokens
  Create or replace the spec for a room (validation/types/defaults). Returns connection info. Omit fields entirely for a fully schemaless room.
• get_client_snippet ~191 tokens
  Returns a complete single-file HTML game wired to this room: realtime movement plus an anonymous (claimable) player, a saved color (datastore), and a click leaderboard. Write it to disk and open it. The game it is wired to is stamped in a comment at the top of the file.
• get_connection_info ~178 tokens
  Returns { wsEndpoint, roomName, publishableKey, adsPublisherId } for wiring a client. adsPublisherId is your BYO Google Ads id (embed it if set). Check the returned `target` names the game you meant before shipping the key.
• get_sdk_reference ~271 tokens
  Returns the full SDK reference (markdown) wired to ONE game's key/endpoints: realtime rooms, player identity (anonymous + claim/login), the datastore (saves/stats/inventory), leaderboards, player-created content (level sharing / UGC), and durable shared MATCHES for asynchronous turn-based play. Read
• list_games ~100 tokens
  List the games (publishable keys) under your studio, with labels and per-game settings. Marks which game is `primary` (the one unnamed calls fall back to) and which one this connection is currently pointed at.
• publish_game Sends messages · ~468 tokens
  Host the game's files at a public share link, https://<slug>.play.multiplayeragent.com/ (the game's own origin; the slug comes from the game's name and never changes). Send every file the game needs: an index.html at the root plus any JS/CSS/assets, paths relative to it. Text goes as utf8 content; i
• set_game_name ~202 tokens
  Set a human-readable name for a game (the `game` argument, else the x-mp-game header, else your only game). The name shows in your dashboard: call this when you start building so the game isn't unnamed. Refuses to guess when the studio has several games and none was named.

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